import java.util.Scanner;

public class Demo01 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int min = sc.nextInt();
        int max = sc.nextInt();
        odd(min,max);
    }
    public static void odd(int min,int max){
        if (min % 2 == 0){
            for (int i = min+1; i <= max; i+=2) {
                System.out.println(i);
            }
        }else {
            for (int i = min; i <= max; i+=2) {
                System.out.println(i);
            }
        }
    }
}

class Demo01_2{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int num1 = sc.nextInt();
        int num2 = sc.nextInt();
        int max = maxValue(num1,num2);
        System.out.println(max);
    }
    public static int maxValue(int num1,int num2){
        int temp;
        if (num1 < num2){
            temp = num2;
        }else {
            temp = num1;
        }
        return temp;
    }
}

class Demo01_03{
    public static void main(String[] args) {
        byte a1 = 12;
        byte b1 = 12;
        short a2 = 12345;
        short b2 = 12345;
        int a3 = 1234567890;
        int b3 = 1234567890;
        long a4 = 1234567890123456789L;
        long b4 = 1234567890123456789L;
        vs(a1,b1);
        vs(a2,b2);
        vs(a3,b3);
        vs(a4,b4);
    }
    public static void vs(byte n,byte m){
        if (n == m){
            System.out.println("两个数相等");
        }else {
            System.out.println("两个数不相等");
        }
    }

    public static void vs(short n,short m){
        if (n == m){
            System.out.println("两个数相等");
        }else {
            System.out.println("两个数不相等");
        }
    }

    public static void vs(int n,int m){
        if (n == m){
            System.out.println("两个数相等");
        }else {
            System.out.println("两个数不相等");
        }
    }

    public static void vs(long n,long m){
        if (n == m){
            System.out.println("两个数相等");
        }else {
            System.out.println("两个数不相等");
        }
    }
}